The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2002
Filed:
Sep. 21, 2001
Mahmoud F. Abdel-Rahman, Newark, DE (US);
Agilent Technologies, Inc., Palo Alto, CA (US);
Abstract
A gas injector comprises (1) a carrier gas channel through which a carrier gas can enter the injector, (2) an output channel through which the carrier gas and a gaseous sample can be injected from the device to an analytical instrument, (3) a sample gas channel capable of holding the gaseous sample, and (4) a switch structure regulating the connections among the sample gas channel, the carrier gas channel and the output channel. The injector also comprises at least a purge channel through which the carrier gas can flow across part of the device, purging therein and preventing contaminants from reaching the output channel. The gas injector provides a low baseline noise and a high signal to noise ratio when applied to a sensitive analytical instrument.